Optoelectronic behavior of some spinel oxides for sustainable engineering

Abstract

Spinel oxides have a pivotal role in material science due to their structural, electrical, magnetic and optical properties, rendering them essential for wide range of applications. Spinel oxides, characterized by their spinel crystal structure, belong to a group of inorganic compounds with a general chemical formula of AB2O4, where A and B represent distinct metal ions. These compounds are frequently encountered in minerals, rocks, and soils, and their versatility makes them invaluable in numerous domains, including catalysis, energy storage, electronics, and ceramics. This paper briefly reports existing fascinating structural, opto-electronic properties of some spinel oxides, to understand electronic band structure, density of states and optical properties such as dielectric function, refractive index, absorption, reflectivity and optical conductivity for their applications in engineering devices. Basically, spinel compounds have physical properties such as high reflectivity, high melting point, high strength and chemical resistivity at elevated temperatures as well as low electrical loss. Therefore, we have made an attempt to showcase considered properties of these materials at one place.